code: def test_simple_file(self):
      content = """
  {
      "a": 5,
      "b": "text"
  }
  {
      "a": 13
  }
  {}
  """.lstrip()
  
      with create_file(content) as filename:
          splitter = JsonFileSplitter(filename)
          self.assertEqual(splitter.get(), {"a": 5, "b": "text"})
          self.assertEqual(splitter.get(), {"a": 13})
          self.assertEqual(splitter.get(), {})
          self.assertEqual(splitter.get(), None)
          splitter.close()
  
file_path: neptune-client/tests/unit/neptune/new/internal/utils/test_json_file_splitter.py
imports: import unittest
  from neptune.internal.utils.json_file_splitter import JsonFileSplitter
  from tests.unit.neptune.new.utils.file_helpers import create_file
label_desc: Use image node_id 1 for calling the TestJsonFileSplitter obj's underlying member method code with example usage: obj.test_simple_file() without return types